Molinari, S., Schisano, E., Elia, D., Pestalozzi, M., Traficante, A., Pezzuto, S., Swinyard, B. M., Noriega-Crespo, A., Bally, J., Moore, T. J. T., Plume, R., Zavagno, A., di Giorgio, A. M., Liu, S. J., Pilbratt, G. L., Mottram, J. C., Russeil, D., Piazzo, L., Veneziani, M., Benedettini, M., Calzoletti, L., Faustini, F., Natoli, P., Piacentini, F., Merello, M., Palmese, A., Del Grande, R., Polychroni, D., Ryg, K. L. J., Polenta, G., Barlow, M. J., Bernard, J. -P., Martin, P. G., Testi, L., Ali, B., Andre, P., Beltran, M. T., Billot, N., Carey, S., Cesaroni, R., Compiegne, M., Eden, D., Fukui, Y., Garcia-Lario, P., Hoare, M. G., Huang, M., Joncas, G., Lim, T. L., Lord, . D., Martinavarro-Armengol, S., Motte, F., Paladini, R., Paradis, D., Peretto, N., Robitaille, T., Schilke, P., Schneider, N., Schulz, B., Sibthorpe, B., Strafella, F., Thompson, M. A., Umana, G., Ward-Thompson, D. and Wyrowski, F. (2016). Hi-GAL, the Herschel infrared Galactic Plane Survey: photometric maps and compact source catalogues First data release for the inner Milky Way:+68 degrees >= l >=-70 degrees. Astron. Astrophys., 591. LES ULIS CEDEX A: EDP SCIENCES S A. ISSN 1432-0746

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Abstract

Aims. We present the first public release of high-quality data products (DR1) from Hi-GAL, the Herschel infrared Galactic Plane Survey. Hi-GAL is the keystone of a suite of continuum Galactic plane surveys from the near-IR to the radio and covers five wavebands at 70, 160, 250, 350 and 500 mu m, encompassing the peak of the spectral energy distribution of cold dust for 8 less than or similar to T less than or similar to 50 K. This first Hi-GAL data release covers the inner Milky Way in the longitude range 68 degrees greater than or similar to l greater than or similar to -70 degrees in a vertical bar b vertical bar <= 1 degrees latitude strip. Methods. Photometric maps have been produced with the ROMAGAL pipeline, which optimally capitalizes on the excellent sensitivity and stability of the bolometer arrays of the Herschel PACS and SPIRE photometric cameras. It delivers images of exquisite quality and dynamical range, absolutely calibrated with Planck and IRAS, and recovers extended emission at all wavelengths and all spatial scales, from the point-spread function to the size of an entire 2 degrees x 2 degrees tile that is the unit observing block of the survey. The compact source catalogues were generated with the CuTEx algorithm, which was specifically developed to optimise source detection and extraction in the extreme conditions of intense and spatially varying background that are found in the Galactic plane in the thermal infrared. Results. Hi-GAL DR1 images are cirrus noise limited and reach the 1 sigma-rms predicted by the Herschel Time Estimators for parallel-mode observations at 60 '' s(-1) scanning speed in relatively low cirrus emission regions. Hi-GAL DR1 images will be accessible through a dedicated web-based image cutout service. The DR1 Compact Source Catalogues are delivered as single-band photometric lists containing, in addition to source position, peak, and integrated flux and source sizes, a variety of parameters useful to assess the quality and reliability of the extracted sources. Caveats and hints to help in this assessment are provided. Flux completeness limits in all bands are determined from extensive synthetic source experiments and greatly depend on the specific line of sight along the Galactic plane because the background strongly varies as a function of Galactic longitude. Hi-GAL DR1 catalogues contain 123210, 308509, 280685, 160972, and 85460 compact sources in the five bands.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Molinari, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schisano, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Elia, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pestalozzi, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Traficante, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pezzuto, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Swinyard, B. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Noriega-Crespo, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bally, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Moore, T. J. T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Plume, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zavagno, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
di Giorgio, A. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Liu, S. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pilbratt, G. L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mottram, J. C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Russeil, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Piazzo, L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Veneziani, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Benedettini, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Calzoletti, L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Faustini, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Natoli, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Piacentini, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Merello, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Palmese, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Del Grande, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Polychroni, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ryg, K. L. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Polenta, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Barlow, M. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bernard, J. -P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Martin, P. G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Testi, L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ali, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Andre, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Beltran, M. T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Billot, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Carey, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cesaroni, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Compiegne, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Eden, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fukui, Y.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Garcia-Lario, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hoare, M. G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Huang, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Joncas, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lim, T. L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lord, . D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Martinavarro-Armengol, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Motte, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Paladini, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Paradis, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Peretto, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Robitaille, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schilke, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schneider, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schulz, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sibthorpe, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Strafella, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Thompson, M. A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Umana, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ward-Thompson, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wyrowski, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-271313
DOI: 10.1051/0004-6361/201526380
Journal or Publication Title: Astron. Astrophys.
Volume: 591
Date: 2016
Publisher: EDP SCIENCES S A
Place of Publication: LES ULIS CEDEX A
ISSN: 1432-0746
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
STAR-FORMATION; DIFFUSE EMISSION; MOLECULAR CLOUDS; DATA REDUCTION; DUST EMISSION; OUTER GALAXY; II REGIONS; CO SURVEY; MU-M; PERFORMANCEMultiple languages
Astronomy & AstrophysicsMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/27131

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